/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * Execution listeners
 */

angular.module('flowableModeler').controller('FlowableSignalDefinitionsCtrl', [
  '$scope',
  '$modal',
  function($scope, $modal) {
    // Config for the modal window
    var opts = {
      template: 'editor-app/configuration/properties/signal-definitions-popup.html?version=' + Date.now(),
      scope: $scope
    }

    // Open the dialog
    _internalCreateModal(opts, $modal, $scope)
  }
])

//Need a separate controller for the modal window due to https://github.com/angular-ui/bootstrap/issues/259
// Will be fixed in a newer version of Angular UI
angular.module('flowableModeler').controller('FlowableSignalDefinitionsPopupCtrl', [
  '$scope',
  '$q',
  '$translate',
  '$timeout',
  function($scope, $q, $translate, $timeout) {
    // Put json representing signal definitions on scope
    if ($scope.property.value !== undefined && $scope.property.value !== null && $scope.property.value.length > 0) {
      if ($scope.property.value.constructor == String) {
        $scope.signalDefinitions = JSON.parse($scope.property.value)
      } else {
        // Note that we clone the json object rather then setting it directly,
        // this to cope with the fact that the user can click the cancel button and no changes should have happened
        $scope.signalDefinitions = angular.copy($scope.property.value)
      }
    } else {
      $scope.signalDefinitions = []
    }

    // Array to contain selected signal definitions (yes - we only can select one, but ng-grid isn't smart enough)
    $scope.selectedSignalDefinition = undefined
    $scope.translationsRetrieved = false

    $scope.labels = {}

    var idPromise = $translate('PROPERTY.SIGNALDEFINITIONS.ID')
    var namePromise = $translate('PROPERTY.SIGNALDEFINITIONS.NAME')
    var scopePromise = $translate('PROPERTY.SIGNALDEFINITIONS.SCOPE')

    $q.all([idPromise, namePromise, scopePromise]).then(function(results) {
      $scope.labels.idLabel = results[0]
      $scope.labels.nameLabel = results[1]
      $scope.labels.scopeLabel = results[2]
      $scope.translationsRetrieved = true

      // Config for grid
      $scope.gridOptions = {
        data: $scope.signalDefinitions,
        headerRowHeight: 28,
        enableRowSelection: true,
        enableRowHeaderSelection: false,
        multiSelect: false,
        modifierKeysToMultiSelect: false,
        enableHorizontalScrollbar: 0,
        enableColumnMenus: false,
        enableSorting: false,
        columnDefs: [
          { field: 'id', displayName: $scope.labels.idLabel },
          { field: 'name', displayName: $scope.labels.nameLabel },
          { field: 'scope', displayName: $scope.labels.scopeLabel }
        ]
      }

      $scope.gridOptions.onRegisterApi = function(gridApi) {
        //set gridApi on scope
        $scope.gridApi = gridApi
        gridApi.selection.on.rowSelectionChanged($scope, function(row) {
          $scope.selectedSignalDefinition = row.entity
        })
      }
    })

    // Click handler for add button
    $scope.addNewSignalDefinition = function() {
      var newSignalDefinition = { id: '', name: '', scope: 'global' }

      $scope.signalDefinitions.push(newSignalDefinition)
      // $timeout(function() {
      //   $scope.gridApi.selection.toggleRowSelection(newSignalDefinition)
      // })
    }

    // Click handler for remove button
    $scope.removeSignalDefinition = function(selectedSignalDefinition) {
      // var selectedItems = $scope.gridApi.selection.getSelectedRows()
      if (selectedSignalDefinition) {
        var index = $scope.signalDefinitions.indexOf(selectedSignalDefinition)
        // $scope.gridApi.selection.toggleRowSelection(selectedItems[0])
        $scope.signalDefinitions.splice(index, 1)

        // if ($scope.signalDefinitions.length == 0) {
        //   $scope.selectedSignalDefinition = undefined
        // }

        // $timeout(function() {
        //   if ($scope.signalDefinitions.length > 0) {
        //     $scope.gridApi.selection.toggleRowSelection($scope.signalDefinitions[0])
        //   }
        // })
      }
    }

    $scope.scopeOptions = [
      { value: 'global', translationId: 'PROPERTY.SIGNALDEFINITIONS.SCOPE-GLOBAL' },
      { value: 'processInstance', translationId: 'PROPERTY.SIGNALDEFINITIONS.SCOPE-PROCESSINSTANCE' }
    ]

    // Click handler for save button
    $scope.save = function() {
      if ($scope.signalDefinitions.length > 0) {
        $scope.property.value = $scope.signalDefinitions
      } else {
        $scope.property.value = null
      }

      $scope.updatePropertyInModel($scope.property)
      $scope.close()
    }

    $scope.cancel = function() {
      $scope.property.mode = 'read'
      $scope.$hide()
    }

    // Close button handler
    $scope.close = function() {
      $scope.property.mode = 'read'
      $scope.$hide()
    }
  }
])
